Addition of Prox NSB tests in yardstick

JIRA: YARDSTICK-802

Added Prox L3FWD and Packet buffering tests
- The tests supports BM and Openstack Heat
- L3FWD tests suports 2 and 4 ports
- Packet flow buffering test is a 1 port test
- Grafana Dashboards are added

TODO: Latency stats are missing in KPI collection
      Need to invetigate that
      Coverage if needed!

Change-Id: I216a170488d5578622cf8c3748a6277b380f016a
Signed-off-by: Abhijit Sinha <abhijit.sinha@intel.com>

7 files changed, 532 insertions, 0 deletions

diff --git a/samples/vnf_samples/nsut/prox/configs/gen_buffering-1.cfg b/samples/vnf_samples/nsut/prox/configs/gen_buffering-1.cfg
new file mode 100644
index 000000000..6deefa82f
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/gen_buffering-1.cfg
@@ -0,0 +1,53 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#;
+
+[eal options]
+-n=4 ; number of memory channels
+no-output=no ; disable DPDK debug output
+
+[port 0]
+name=p0
+mac=hardware
+
+[defaults]
+mempool size=4K
+
+[variables]
+$sut_mac0=@@dst_mac0
+
+[global]
+start time=5
+name=Buffering gen
+
+[core 0]
+mode=master
+
+[core 1]
+name=p0
+task=0
+mode=gen
+tx port=p0
+bps=1250000000
+; Ethernet + IP + UDP
+pkt inline=${sut_mac0} 70 00 00 00 00 01 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 c0 a8 01 01 13 88 13 88 00 08 55 7b
+
+[core 2]
+name=P1
+task=0
+mode=lat
+rx port=p0
+lat pos=42
+
diff --git a/samples/vnf_samples/nsut/prox/configs/gen_l3fwd-2.cfg b/samples/vnf_samples/nsut/prox/configs/gen_l3fwd-2.cfg
new file mode 100644
index 000000000..efdc3ef17
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/gen_l3fwd-2.cfg
@@ -0,0 +1,73 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#;
+
+[eal options]
+-n=4 ; force number of memory channels
+no-output=no ; disable DPDK debug output
+
+[port 0]
+name=p0
+mac=hardware
+[port 1]
+name=p1
+mac=hardware
+
+[defaults]
+mempool size=4K
+
+[variables]
+$sut_mac0=@@dst_mac0
+$sut_mac1=@@dst_mac1
+
+[global]
+start time=5
+name=Routing Gen
+
+[core 0]
+mode=master
+
+[core 1]
+name=p0
+task=0
+mode=gen
+tx port=p0
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 0a 00 00 00 13 88 13 88 00 08 55 7b
+random=0000101XXXXXXXXXXXXX0000XXXXXXXX
+rand_offset=30
+
+[core 2]
+name=p1
+task=0
+mode=gen
+tx port=p1
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 0a 00 00 00 13 88 13 88 00 08 55 7b
+random=0000101XXXXXXXXXXXXX0000XXXXXXXX
+rand_offset=30
+
+[core 3]
+task=0
+mode=lat
+rx port=p0
+lat pos=42
+
+[core 4]
+task=0
+mode=lat
+rx port=p1
+lat pos=42
+
diff --git a/samples/vnf_samples/nsut/prox/configs/gen_l3fwd-4.cfg b/samples/vnf_samples/nsut/prox/configs/gen_l3fwd-4.cfg
new file mode 100644
index 000000000..bf226f822
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/gen_l3fwd-4.cfg
@@ -0,0 +1,114 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#;
+
+[eal options]
+-n=4 ; force number of memory channels
+no-output=no ; disable DPDK debug output
+
+[port 0]
+name=p0
+mac=hardware
+[port 1]
+name=p1
+mac=hardware
+[port 2]
+name=p2
+mac=hardware
+[port 3]
+name=p3
+mac=hardware
+
+[defaults]
+mempool size=4K
+
+[variables]
+$sut_mac0=@@dst_mac0
+$sut_mac1=@@dst_mac1
+$sut_mac2=@@dst_mac2
+$sut_mac3=@@dst_mac3
+
+[global]
+start time=5
+name=Routing Gen
+
+[core 0]
+mode=master
+
+[core 1]
+name=p0
+task=0
+mode=gen
+tx port=p0
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 0a 00 00 00 13 88 13 88 00 08 55 7b
+random=0000101XXXXXXXXXXXXX0000XXXXXXXX
+rand_offset=30
+
+[core 2]
+name=p1
+task=0
+mode=gen
+tx port=p1
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 0a 00 00 00 13 88 13 88 00 08 55 7b
+random=0000101XXXXXXXXXXXXX0000XXXXXXXX
+rand_offset=30
+
+[core 3]
+name=p2
+task=0
+mode=gen
+tx port=p2
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 0a 00 00 00 13 88 13 88 00 08 55 7b
+random=0000101XXXXXXXXXXXXX0000XXXXXXXX
+rand_offset=30
+
+[core 4]
+name=p3
+task=0
+mode=gen
+tx port=p3
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d c0 a8 01 01 0a 00 00 00 13 88 13 88 00 08 55 7b
+random=0000101XXXXXXXXXXXXX0000XXXXXXXX
+rand_offset=30
+
+
+[core 5]
+task=0
+mode=lat
+rx port=p0
+lat pos=42
+
+[core 6]
+task=0
+mode=lat
+rx port=p1
+lat pos=42
+
+
+[core 7]
+task=0
+mode=lat
+rx port=p2
+lat pos=42
+
+[core 8]
+task=0
+mode=lat
+rx port=p3
+lat pos=42
\ No newline at end of file
diff --git a/samples/vnf_samples/nsut/prox/configs/handle_buffering-1.cfg b/samples/vnf_samples/nsut/prox/configs/handle_buffering-1.cfg
new file mode 100644
index 000000000..80d7d0734
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/handle_buffering-1.cfg
@@ -0,0 +1,52 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#;
+
+[eal options]
+-n=4 ; number of memory channels
+no-output=no ; disable DPDK debug output
+
+[port 0]
+name=if0
+mac=hardware
+rx desc=2048
+tx desc=2048
+
+[defaults]
+mempool size=1879K
+memcache size=512
+
+[global]
+start time=5
+name=Handle Buffering (1x)
+
+[core 0]
+mode=master
+
+[core 1]
+name=none
+task=0
+mode=impair
+delay ms=125
+rx port=if0
+tx cores=1t1
+drop=no
+
+task=1
+mode=l2fwd
+dst mac=@@tester_p0
+rx ring=yes
+tx port=if0
+drop=no
diff --git a/samples/vnf_samples/nsut/prox/configs/handle_l3fwd-2.cfg b/samples/vnf_samples/nsut/prox/configs/handle_l3fwd-2.cfg
new file mode 100644
index 000000000..f7d4376f4
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/handle_l3fwd-2.cfg
@@ -0,0 +1,62 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#;
+
+[lua]
+lpm4 = dofile("ipv4.lua")
+
+[eal options]
+-n=4 ; force number of memory channels
+no-output=no ; disable DPDK debug output
+
+[port 0]
+name=if0
+mac=hardware
+rx desc=2048
+tx desc=2048
+
+[port 1]
+name=if1
+mac=hardware
+rx desc=2048
+tx desc=2048
+
+[defaults]
+mempool size=4K
+
+[global]
+start time=5
+name=Routing (2x)
+
+[core 0]
+mode=master
+
+[core 1]
+name=Routing
+task=0
+mode=routing
+route table=lpm4
+rx port=if0
+tx port=if0,if1
+drop=no
+
+[core 2]
+name=Routing
+task=0
+mode=routing
+route table=lpm4
+rx port=if1
+tx port=if0,if1
+drop=no
\ No newline at end of file
diff --git a/samples/vnf_samples/nsut/prox/configs/handle_l3fwd-4.cfg b/samples/vnf_samples/nsut/prox/configs/handle_l3fwd-4.cfg
new file mode 100644
index 000000000..d5822225f
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/handle_l3fwd-4.cfg
@@ -0,0 +1,81 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#;
+
+[lua]
+lpm4 = dofile("ipv4.lua")
+
+[eal options]
+-n=4 ; force number of memory channels
+no-output=no ; disable DPDK debug output
+
+[port 0]
+name=if0
+mac=hardware
+[port 1]
+name=if1
+mac=hardware
+[port 2]
+name=if2
+mac=hardware
+[port 3]
+name=if3
+mac=hardware
+
+[defaults]
+mempool size=4K
+
+[global]
+start time=5
+name=Routing (4x)
+
+[core 0]
+mode=master
+
+[core 1]
+name=Routing
+task=0
+mode=routing
+route table=lpm4
+rx port=if0
+tx port=if0,if1
+drop=no
+
+[core 2]
+name=Routing
+task=0
+mode=routing
+route table=lpm4
+rx port=if1
+tx port=if0,if1
+drop=no
+
+[core 3]
+name=Routing
+task=0
+mode=routing
+route table=lpm4
+rx port=if2
+tx port=if2,if3
+drop=no
+
+[core 4]
+name=Routing
+task=0
+mode=routing
+route table=lpm4
+rx port=if3
+tx port=if2,if3
+drop=no
diff --git a/samples/vnf_samples/nsut/prox/configs/ipv4.lua b/samples/vnf_samples/nsut/prox/configs/ipv4.lua
new file mode 100644
index 000000000..6a8fbe183
--- /dev/null
+++ b/samples/vnf_samples/nsut/prox/configs/ipv4.lua
@@ -0,0 +1,97 @@
+-- Copyright (c) 2016-2017 Intel Corporation
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--      http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+local lpm4 = {}
+lpm4.next_hops = {
+   {id = 0,  port_id = 0, ip = ip("1.1.1.1"),  mac = mac("00:00:00:00:00:01"), mpls = 0x112},
+   {id = 1,  port_id = 1, ip = ip("2.1.1.1"),  mac = mac("00:00:00:00:00:02"), mpls = 0x212},
+   {id = 2,  port_id = 0, ip = ip("3.1.1.1"),  mac = mac("00:00:00:00:00:03"), mpls = 0x312},
+   {id = 3,  port_id = 1, ip = ip("4.1.1.1"),  mac = mac("00:00:00:00:00:04"), mpls = 0x412},
+   {id = 4,  port_id = 0, ip = ip("5.1.1.1"),  mac = mac("00:00:00:00:00:05"), mpls = 0x512},
+   {id = 5,  port_id = 1, ip = ip("6.1.1.1"),  mac = mac("00:00:00:00:00:06"), mpls = 0x612},
+   {id = 6,  port_id = 0, ip = ip("7.1.1.1"),  mac = mac("00:00:00:00:00:07"), mpls = 0x712},
+   {id = 7,  port_id = 1, ip = ip("8.1.1.1"),  mac = mac("00:00:00:00:00:08"), mpls = 0x812},
+   {id = 8,  port_id = 0, ip = ip("9.1.1.1"),  mac = mac("00:00:00:00:00:09"), mpls = 0x912},
+   {id = 9,  port_id = 1, ip = ip("10.1.1.1"), mac = mac("00:00:00:00:00:10"), mpls = 0x1012},
+   {id = 10, port_id = 0, ip = ip("11.1.1.1"), mac = mac("00:00:00:00:00:11"), mpls = 0x1112},
+   {id = 11, port_id = 1, ip = ip("12.1.1.1"), mac = mac("00:00:00:00:00:12"), mpls = 0x1212},
+   {id = 12, port_id = 0, ip = ip("13.1.1.1"), mac = mac("00:00:00:00:00:13"), mpls = 0x1312},
+   {id = 13, port_id = 1, ip = ip("14.1.1.1"), mac = mac("00:00:00:00:00:14"), mpls = 0x1412},
+   {id = 14, port_id = 0, ip = ip("15.1.1.1"), mac = mac("00:00:00:00:00:15"), mpls = 0x1512},
+   {id = 15, port_id = 1, ip = ip("16.1.1.1"), mac = mac("00:00:00:00:00:16"), mpls = 0x1612},
+   {id = 16, port_id = 0, ip = ip("17.1.1.1"), mac = mac("00:00:00:00:00:17"), mpls = 0x1712},
+   {id = 17, port_id = 1, ip = ip("18.1.1.1"), mac = mac("00:00:00:00:00:18"), mpls = 0x1812},
+   {id = 18, port_id = 0, ip = ip("19.1.1.1"), mac = mac("00:00:00:00:00:19"), mpls = 0x1912},
+   {id = 19, port_id = 1, ip = ip("20.1.1.1"), mac = mac("00:00:00:00:00:20"), mpls = 0x2012},
+   {id = 20, port_id = 0, ip = ip("21.1.1.1"), mac = mac("00:00:00:00:00:21"), mpls = 0x2112},
+   {id = 21, port_id = 1, ip = ip("22.1.1.1"), mac = mac("00:00:00:00:00:22"), mpls = 0x2212},
+   {id = 22, port_id = 0, ip = ip("23.1.1.1"), mac = mac("00:00:00:00:00:23"), mpls = 0x2312},
+   {id = 23, port_id = 1, ip = ip("24.1.1.1"), mac = mac("00:00:00:00:00:24"), mpls = 0x2412},
+   {id = 24, port_id = 0, ip = ip("25.1.1.1"), mac = mac("00:00:00:00:00:25"), mpls = 0x2512},
+   {id = 25, port_id = 1, ip = ip("26.1.1.1"), mac = mac("00:00:00:00:00:26"), mpls = 0x2612},
+   {id = 26, port_id = 0, ip = ip("27.1.1.1"), mac = mac("00:00:00:00:00:27"), mpls = 0x2712},
+   {id = 27, port_id = 1, ip = ip("28.1.1.1"), mac = mac("00:00:00:00:00:28"), mpls = 0x2812},
+   {id = 28, port_id = 0, ip = ip("29.1.1.1"), mac = mac("00:00:00:00:00:29"), mpls = 0x2912},
+   {id = 29, port_id = 1, ip = ip("30.1.1.1"), mac = mac("00:00:00:00:00:30"), mpls = 0x3012},
+   {id = 30, port_id = 0, ip = ip("31.1.1.1"), mac = mac("00:00:00:00:00:31"), mpls = 0x3112},
+   {id = 31, port_id = 1, ip = ip("32.1.1.1"), mac = mac("00:00:00:00:00:32"), mpls = 0x3212},
+   {id = 32, port_id = 0, ip = ip("33.1.1.1"), mac = mac("00:00:00:00:00:33"), mpls = 0x3312},
+   {id = 33, port_id = 1, ip = ip("34.1.1.1"), mac = mac("00:00:00:00:00:34"), mpls = 0x3412},
+   {id = 34, port_id = 0, ip = ip("35.1.1.1"), mac = mac("00:00:00:00:00:35"), mpls = 0x3512},
+   {id = 35, port_id = 1, ip = ip("36.1.1.1"), mac = mac("00:00:00:00:00:36"), mpls = 0x3612},
+   {id = 36, port_id = 0, ip = ip("37.1.1.1"), mac = mac("00:00:00:00:00:37"), mpls = 0x3712},
+   {id = 37, port_id = 1, ip = ip("38.1.1.1"), mac = mac("00:00:00:00:00:38"), mpls = 0x3812},
+   {id = 38, port_id = 0, ip = ip("39.1.1.1"), mac = mac("00:00:00:00:00:39"), mpls = 0x3912},
+   {id = 39, port_id = 1, ip = ip("40.1.1.1"), mac = mac("00:00:00:00:00:40"), mpls = 0x4012},
+   {id = 40, port_id = 0, ip = ip("41.1.1.1"), mac = mac("00:00:00:00:00:41"), mpls = 0x4112},
+   {id = 41, port_id = 1, ip = ip("42.1.1.1"), mac = mac("00:00:00:00:00:42"), mpls = 0x4212},
+   {id = 42, port_id = 0, ip = ip("43.1.1.1"), mac = mac("00:00:00:00:00:43"), mpls = 0x4312},
+   {id = 43, port_id = 1, ip = ip("44.1.1.1"), mac = mac("00:00:00:00:00:44"), mpls = 0x4412},
+   {id = 44, port_id = 0, ip = ip("45.1.1.1"), mac = mac("00:00:00:00:00:45"), mpls = 0x4512},
+   {id = 45, port_id = 1, ip = ip("46.1.1.1"), mac = mac("00:00:00:00:00:46"), mpls = 0x4612},
+   {id = 46, port_id = 0, ip = ip("47.1.1.1"), mac = mac("00:00:00:00:00:47"), mpls = 0x4712},
+   {id = 47, port_id = 1, ip = ip("48.1.1.1"), mac = mac("00:00:00:00:00:48"), mpls = 0x4812},
+   {id = 48, port_id = 0, ip = ip("49.1.1.1"), mac = mac("00:00:00:00:00:49"), mpls = 0x4912},
+   {id = 49, port_id = 1, ip = ip("50.1.1.1"), mac = mac("00:00:00:00:00:50"), mpls = 0x5012},
+   {id = 50, port_id = 0, ip = ip("51.1.1.1"), mac = mac("00:00:00:00:00:51"), mpls = 0x5112},
+   {id = 51, port_id = 1, ip = ip("52.1.1.1"), mac = mac("00:00:00:00:00:52"), mpls = 0x5212},
+   {id = 52, port_id = 0, ip = ip("53.1.1.1"), mac = mac("00:00:00:00:00:53"), mpls = 0x5312},
+   {id = 53, port_id = 1, ip = ip("54.1.1.1"), mac = mac("00:00:00:00:00:54"), mpls = 0x5412},
+   {id = 54, port_id = 0, ip = ip("55.1.1.1"), mac = mac("00:00:00:00:00:55"), mpls = 0x5512},
+   {id = 55, port_id = 1, ip = ip("56.1.1.1"), mac = mac("00:00:00:00:00:56"), mpls = 0x5612},
+   {id = 56, port_id = 0, ip = ip("57.1.1.1"), mac = mac("00:00:00:00:00:57"), mpls = 0x5712},
+   {id = 57, port_id = 1, ip = ip("58.1.1.1"), mac = mac("00:00:00:00:00:58"), mpls = 0x5812},
+   {id = 58, port_id = 0, ip = ip("59.1.1.1"), mac = mac("00:00:00:00:00:59"), mpls = 0x5912},
+   {id = 59, port_id = 1, ip = ip("60.1.1.1"), mac = mac("00:00:00:00:00:60"), mpls = 0x6012},
+   {id = 60, port_id = 0, ip = ip("61.1.1.1"), mac = mac("00:00:00:00:00:61"), mpls = 0x6112},
+   {id = 61, port_id = 1, ip = ip("62.1.1.1"), mac = mac("00:00:00:00:00:62"), mpls = 0x6212},
+   {id = 62, port_id = 0, ip = ip("63.1.1.1"), mac = mac("00:00:00:00:00:63"), mpls = 0x6312},
+   {id = 63, port_id = 1, ip = ip("64.1.1.1"), mac = mac("00:00:00:00:00:64"), mpls = 0x6412},
+}
+
+lpm4.routes = {};
+
+base_ip = 10 * 2^24;
+
+for i = 1,2^13 do
+   res = ip(base_ip + (1 * 2^12) * (i - 1));
+
+   lpm4.routes[i] = {
+      cidr        = {ip = res, depth = 24},
+      next_hop_id = (i - 1) % 64,
+   }
+end
+
+return lpm4